Ukrainian authorities released a video of a MiG-29 fighter jet dropping a French "Hammer" guided bomb, which bombed a building, but the bomb missed. Ukraine said this was due to the interference from Russian electronic warfare facilities, causing the bomb to deviate by several meters.
Since GPS satellites are in an orbit more than 20,000 kilometers above the Earth, the signals reaching the ground are very weak. Therefore, Russian jamming equipment does not need a high power; it only needs to generate slightly stronger noise than the real GPS signal in a local area to suppress the real GPS signal. The civilian code (C/A code) of GPS is public, so the technical threshold for interfering with it is relatively low. Although the military P(Y) code is encrypted and has stronger anti-jamming capabilities, Russian electronic warfare equipment can still suppress and deceive it. Currently, due to Russian interference, Ukrainian forces rarely use American-made 155mm satellite-guided artillery shells.
Original text: www.toutiao.com/article/1842306156829771/
Statement: This article represents the views of the author himself.